It seems to me that 300 seconds freeze before entering hibernation and upon wakeup from hibernation/suspend is due to ACPI error. Here is a piece of dmesg log upon waking up from hibernation: [ 809.010089] ACPI: Waking up from system sleep state S4 [ 1109.023404] ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20100428/evregion-474) [ 1109.023414] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.LPC0.EC0_.ECWK] (Node ffff88006db36160), AE_TIME [ 1109.023457] ACPI Error (psparse-0537): Method parse/execution failed [\_WAK] (Node ffff88006f802920), AE_TIME [ 1109.023499] ACPI Exception: AE_TIME, During Method _WAK (20100428/hwsleep-601)
I've included decompiled DSDT table from Acer Aspire One 721-128ss BIOS as it can be helpful. If any further information or testing is needed I'll be glad to provide it. ** Attachment added: "Decompiled AAO-721 ACPI DSDT table (gzipped to reduce size)" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/642091/+attachment/1697782/+files/DSDT.dsl.gz -- Acer Aspire One 721 - no resume after suspend https://bugs.launchpad.net/bugs/642091 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
